This might seem trivial...but its really annoying me!

Some spreadsheets viewed in print preview allow me to use the mouse wheel to
instantly scroll up and down and view the entire spreadsheet... but with some
other spreadsheets I have to click the Next button before the wheel will
scroll....why???? There doesnt seem to be any discrepancies in how the
spreadsheets have been created/saved etc.

any ideas appreciated.
cheers,
Nadia